Method and system of vibratory signal control



y 7 J. P. TARBOX METHOD AND SYSTEM OF VIBRATORY SIGNAL CONTROL Filed Oct. 22. 1923 3 Sheets-Sheet l INVENTOIQ y J. P. TARBOX METHOD AND SYSTEM OF VIBRATORY SIGNAL CONTROL Filed Oct. 22. 1923 3 Sheets-Sheet 2 .NBEHH Q d! Q INVENTOR ay 10, 27 J, P. TARBOX D SYSTEM OF VIBRATORY SIGNAL CONTROL METHOD AN Filed Oct. 22, 1923 3 Sheqts-Sheet3 IN V ENTOR Patented May 10, 1927.

UNITED STATES PATENT o FFICE.

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Original application filed April. 10, 1917, Serial No. 161,016.

564,621. Divided and this application. filed October My invention relates to what I terma method and system of vibratory signal control, that is, an apparatus adapted to control another apparatus thru the received vibrav.h

tional energy of sound electricity, magnetism, or othermedium, wirelessly or otherwise transmitted. g

My invention is adapted to the control of any agency whatsoever which it is desired to govern from h distance by vibrational energies. For example, it is e ecially adapted to effect code or other signz il printing, to effect distant control of steerin apparatus, to control a printing. telegrapi, to control locks, etc.

The vibrational control of the present application is that form especially adapted for the direct control of the record elements as distinguished from their control thru intermediate translating devices. The aim is to eliminate complications of tuned electrical circuits made up of suitably proportioned inductances and ca acities, and to accomplish as simply and as directl as possible the control which is the aim '0 the apparatus. Any primary vibrating element or ele-' ments, circuit or circuits, maybe utilized toreceive and analyze the transmitted controlling vibrational energies. I have illus trated diaphragmsof peculiar construction. These, however, illustrative. Other equivalent devices may be substituted for them without in any way altering the method and system which is' the subject of this application. So far as novel the structure of the diaphragms is be ing covered in a divisional application.

The various parts of the diaphragms illustrated vibrate variously according to dif ferent wave lengths, frequencies, and intensities and combinations of the' same. Dif ferently' vibrated portions ofthe diaphragm control each a different electrical control circuit. There are placed in these control circuits electro-magnetic relays of the type commonly known in the electrical art as slow relays, i. e., relays having periods of actuation different from their periods of restoration. The relays in turn control the circuits of the record elements. 'The particular slow relays illustrated are those having a period of restoration greater than the period of actuation whereby successive vibratory energizations' retain the'rela s in actuated position, and the cessation o y of are to be taken purely as.

Benewe'd November 12, 1921, Serial No.

22, 1823. Serial H0. 888,888.

such vibrations effects restoration. The restoration is utilized tion of the record element.-

as many advantages the foremost of which, as aforesaid, is simplicity and directness of operation, but prominent among the advantages is the elimination of repetition of actuatlonupon the occurrence of sustainfad vibrations occurring in pronunciation at unwarranted times. i

Referring to the drawin Figs. 1 and 2 illustrate diagrammatically when taken in connection with each other the system at large.

Figs'..3 to 7 are various forms of the primarl vibrational control element.

T e method -and system intended to be covered bypthis application comprise especially that portion of apparatus disclosed in Fig. 2 and the ortion in the lower right hand of-Fi .1 esignated there SM. The circuits'of ig. 2 are the letter and fi ure circuits while those in the lower ri tof Fig. 1 are.those of the spacing mechanism, the function of which mechanism is to properly group the record of the various energy segregations accomplished by the circuits of Fig. l'into syllable, word, phrase and sentence, grou s or their equivalents. These'groups will e of a character determined ointly by the character of the signals received and the relative perfection of the element which receives them. This element I term the primary vibrational control elefiled ApIril 10, 1917. Renewed Nov. 12, 1921.

Serial 0. 564,621, from which this application is divided. I

C designates the transverse carriage and platen of the traversin record type of typewriting machine. designates an electric motor for traversing'this carriage. The

circuit of the motor is controlled by the relay T1"; The m tor traverses the arn g 0 determine the actua- Such a system Y in one direction (as-for instance to the left) against the tension of a spring which redraws it to the right. Obviously, the other typesof traverse may be employed, as'for instance traverse of the type barsinstead of the platen, a form of which, devised 4 by me, is disclosed in my aforesaid application. In the type 'ofFig. 1 the type basket is stationary and its bars are designated PER, COM. P, E, R, T, V, etc. Traverslng the type basket instead of the platen has the advantage that the automatic ceding of paper to the platen from rolls and duplicating by a continuous band of carbon, may be easily accomplished.

The record is stepped to left by a spacing device Sd. This device may be actuated each time a type bar is actuated, or the actuation of type bars may-control an auxiliary :device.

The line feeding is accomplished by an electric mechanically actuated li-ne feeddevice LF, the mechanical features of which may be of any of the well known forms and which may be controlled by a special key or else by dictation, as in case of the control of the traverse motor hereinafter described, or on the other hand the feed device may be mechanically operated thru traverse movement as in case of several typewriters on the market today.

The paper.feed, of greater extent than line feed, is accomplished by feed motor Pf geared to the axis of the carriage C by means ofan extended shaft 8 and the gears g, one of which is" splined on shaft 8. This motor may be controlled as in my parent application, or in the manner of the traverse motor to be described, or by special key.

The CAPS shift device is shown at the right of the traverse motor Tm and is designated Cs. Its circuits and-operation will be hereinafter traced. Sufficeit to say that its armature is connected with the levers which control the type basket or platen shift as the case may be, to effect the record of capital letters instead of small letters.

Left and right marginal switches Pm. and 1m. control the marginal operations of the various devices. The right hand marginal switch Im' (which appears on the left of the figure) is cam operated by cam roller 0, connccted with the carriage C, while the left hand marginal switch lm is operated by shafts of the platen or other equivalent means. y

The type beams or bars P, E, R, etc. are eleetro-magnetically actuated by actuating magnets shown as of the solenoid type and having each one or two windings w, w,

acting on a common core or armature 0, ad?

justably connected with the type beams.

Any of these instrumentalities may be given any of the forms now so well known to the art. It is intended to illustrate but diagrammatically the utilization of motors,

' clarity of delineation.

rotary, eleetro-magnetic or other, controlled thru themechanism to be described to effect thru the application of power the movements of the respective devices with which the motive devices are associated. In fact,

the motive device's themselves, may, like the devices whichareactuated, vbe of anyof the v numerous well known forms.

The primary \ihratmnal control elemen is the diaphragm Dl. -This diaphragm is of the nature of a telephone transmitter. Any other primary vibrational control element.

known or to be known-- to the art may be substituted. M p

In the form of Fig. 3 this diaphragm is pivoted at its center 2342 instead of being supported at its outer edge and in operation vibrates on various diameters and circles, and combination of these forming the well known chords of Chladni. The outer edge of the disk is provided with radial slits or slots 343 forming a plurality of more or less rigid spring fingers 344 which are thrown into forced vibration of greater extent than the vibration of the main body of the disk. Each of these fingers in vibration is arranged to close a particular electrical circuit. The pronounced sounds are thus in effect split up into their various components and each component effects the energization of a particular circuit. In constructing an element 'of this type, there is necessary of course adjustment of the contacts 345 each to the proper finger 344, and the adjustment of the spring and mass of fingers 344 to obtain proper differentiation. This can bereadily determined by experiment, a particular tinger or a particular plurality of fingers being set in highest vibration by a particular justably in arm 347 of bracket 348 carriedon pedestal 349. Also carried on the bracket ina plane parallel to that .of diaphragm is a contact ring 350 of insulating material thru which project adjustable conta cts.34-5 in close proximity to the back face of the diaphragm. All of these parts, and some others are shown of disproportionate thickness and distance from each other merely for Actually the diaphragms and the contact gaps may be only a few thousandths of an inch thru. Housing the diaphragm closely but not touching the same and extending .in front thereof is a housin 352 into the center of which is let a mouth telephone transmitters. Upon'sounding into piece 353 of the usual type found in iio bolica the mouthpiece the air in the interior of the housing 352 is set into vibration and the diaphragm vibrated correspondingly, with the result that the contacts 345 are closed in succession, singly or in combination.

Another form of this device is shown in Figs. 5 and 6. Similar parts hear similar reference numerals. The diaphragm in this form is hollow in the center, being formed of two disks sealed together at their outer edges adjacent the inner ends of fingers 344 after the fashion of a well known aneroid barometer. It is shown in front elevation in Fig. 5. It is supported on the outer end of a rigid tube 354 which communicates with the interior. The interior contains a fluid, compressible or non-compressible, the pressure of which, and hence the tension of the diaphragm, may be regulated by turning piston screw 355 threaded into the outer end of the tube 354. Tube 354 is supported directly in arm 347, being splined therein by key 356. It is adjustable by means of screw 357 in bracket 347 bearing against collar 358, secured on tube 354, and adapted to force collar 358 and tube 354 forward against the pressure of spiral spring 359 intermediate the collar 358 and the insulating ring 350. By this adjustment, as with the adjustment of screw 346, the diaphragm may be adjusted minutely with respect to contacts 345. This adjustment of theldiaphragm as a whole, When employed with the adjustment of the individual contacts 345, makes possible adjustment to meet any existing relative vibrational condition as respects the various portions of the circumference of the disk.

In Fig. 7 is shown still another form, in which, instead of using the diaphragm, a parabolic bcll 360 of thin sheet or other material having the proper vibrational qualities is made use of. The bell isadjustahly supported from arm 347 as in case of the diaphragm, and its outer edge is slit or slotted to form fingers 344 lying approximately parallel with the axis of the bell. Contacts 345 are supported by ring 361 in a plane transversely of the axis of the bell, and housing 352 is supported directly from ring 361. The "ibration in this form of analyzer is highly intensified, owing to the parabolic shape of the vibrating element, the vibration taking place on diameters perpendicular tothe axis of the bell. If desired,

the mouthpiece 353 may be extended inwardly, as shown in dotted lines, to a position a proximately at the focus of the para- Fsurfaces of the bell. As in the case of the device of Fig. 3 the dimensions here shown are disproportionate, and may be any dimensions conducive to the greatest efiiciency of attainment of the effects set. forth. Any one of these several primary control elements may be used as indicated by the diaphragm D5 of Fig. 2. Indeed the control device of the patent to Ferguson N 0. 999,975, might (if operative) be so used, or any similar devices now known or to be known to this art, and properly classed as equivalents of those ust described and under discussion. The fundamental requisite of such a device is that it shall lit set into vibrati n variously by energy of the sound to differentially (ontrol a plurality of electric circuits associated therewith.

Referring now especially to Figs. land 2, Re are secondary relays controlled from the vocal analyzer Di. Tf is a set of transfer relays intermediate the relays Re and the actuating magnets w. Relays Re are of the slow relay type, i. e., quicltj to pull up and slow to retract, while relays Tf are of the fast relay type. Each relay Re makes two contacts, a front contact 426 controlling 427 of corresponding relay Tf and a back contact 426 controlling thru front 429 of relay Tf the circuit 430 of actuating magnet w. Certain relays Re make an additional back contact 428.

In addition to contacts429 relays Tf are provided with ordinary locking contacts 431 controlling their locking circuits 432 thru normally closed limit contacts 433 of magnets w of the type bars. The relays T are further provided with parallel locking contacts 434 connecting with extraordinary locking circuits 435 to figure or carriage actuating magnets, and with series circuit closing contacts 436 controlling in series the circuits 437 of the figure or (arriage actuating magnets, all as will appear more fully later on. As will be seen later too, some relays Tf may have a plural number of contacts 434 and 436.

Relay group SM is a slow relay syllabilizing andspacing mechanism. It employs a method of differentiation of the time intervals between the individually differentiated signal sounds and the groups of such sounds, or the differentiation of the time intervals between syllables, or equivalent slllhglmlps of the group from the time intervals between successive groups. In my parent application above identified there are disclosed several ways of accomplishing this differentiation of which that here shown is one. It depends upon the continuity of energizintion of the slow relays Re as indicated by the flow of energizing current in the common battery connection 438 of the group of relays Re. Consequently relay 31 of the group Sm is energized as long as there is current in the common connection 438. that is, synchronously with the vibratory encrgization of the circuits of the relays Re. However, owing to the high frequency relay 31 does not fall back between all vibrations but only those separated by a period equal to or greater than its period of restoration.

If group sounds are made carefully in syllables it will be observed that the cessation of fundamental tone in each case marks the division of the word into syllables, and'furthermore, marks the distinction between groups. The fundamental ceases for a longer period between groups than between syllables and we can and do at will vary the difference in length between these periods, generally to increase the length of the period between groups. This latter results in'succinctness. The same is true of any equivalent grouping of signal vibrations. There may or may not be provided a relay Re responsive to a pervading or carrying wave of fundamental note through diaphragm Dz.

If provided relay 31 need not be adjusted so closely as in case of its omission, since it is not subject to deenergizations between characterizing individual sound vibrations by reason of the continuity of the fundamental vibration.

But the time of deenergization of the relay in conductor 438 measures the length of these periods. Relay 31 in'turn controls by circuit NB, armature 34', front contact 35, and conductor 36, a relay 37, of what is commonly known to the art as the slow relay type. This relay is provided usually with a copper sheath for its'core whereby the time of its release or falling back is increased. As is well known in the art, this type of relay may be constructed and adjusted to fall back more or less rapidly. With respect to the time of falling back of this relay the time cessation of the circuit energizations or of fundamental tone as measured by relay is compared. Relay 31 also when it pulls up energizes-locking relay 40 over circuit from NB, armature 41, front contact 42, conductor 43, relay 40 and to bus PB. Relay locks up thru conductor 44,

front contact 45, conductor 46, normally closed contacts 445 .on Dash actuator conductor 448, normally closed contacts 444 of switch lm, conductor 441, normally closed contacts 442 of spacing magnet Sd, to negative bus NB. Thus relay 40 when locked up is unlocked upon the effecting of any one of dash," traverse, or space movements.

\Vhen relay 40 is locked up and relay 31 falls back during the closure of left limit switch lm, a second locking, relay 53 is pulled up from NB, armature 41,- backcontact 54, conductor 55, front contact 56 or. re-' lay 40, conductor 57 relay'53, conductor 58, left limit switch 1m, and battery PB, This relay 53 therefore is pulled up when relay 31 falls back when the left limit'switch km. of the typewriter carriage 6 is closed, and this switch is arranged to be closed whenever the writing reaches the marginal limit at the end of each line and throughout the right marginal s ace usually guarded by a bell for syllabiliz'ing and traversing. Relay 53 locks'up by conductor 59 to conductor 46 and over the same locking circuit as traced for relay 40.

As aforesaid, relay 31 falls back each timethe circuit deenergization of relays Re is greater than its natural period of restoration, both between sound signal groups, and between syllable sub-groups. If between subgroups the interval of restoration is too short to permit the slow acting relay 37 torelease,

but each time relay 31 falls back it partially closes the circuit of relay 53 at its back contact 54, thus continually testing for the marginal condition of circuit closure for relay. 53 brought about by the closure of limit switch lm. Upon finding such condition, whether between signal groups or between subgroups, relay 53 is energized. Pulling up and locking itself it closes one circuit and partially closes another, the first from bus NB by front contact 60, conductor 61, bell relay 62, and bus PB, andtho second from bus NB, thru front contact 34',

of relay 31, conductor 36, front contact 64 V of relay 53, conductor 65, magnet M of the Dash actuator to" PB, thus printing a dash after the latest subgroup pronounced. Note that this operation takes place only when relay 31 pulls up when relay 53 has locked up on the marginal limit switch l-m', but it does not always take place when these conditions are present.

If beforerelay 31 has again-pulled up, there has been a time interval of circuit deenergizations of relays Re and hence of relay 31 sufiicient for slow relay 37 to drop back, this relay closes a circuit from PB by its back contact 66, conductor 67, front contact 68 of the first locking relay 40, conductor 69, back contact 70 of relay 69 conductor 440, and ma net of the space actuating device Sd, to bus B. Thus if there has been time for a slow relay '37 to fall back a space is regis tered. The energization of'themagnet of the space device Sd opens contacts 442 in the locking circuit of rela s 40 and 53, and they fallback, whereby, w en relay 31 again pulls up the syllable or dash circuit previously tracedis open at contact 64 of rela 53 and the-dash magnet M is not energize Relay 37 ,as aforesaid, is a means of measuring the time-interval of cessation of sound signals or of the fundamental as indicated by the time of deenergization or restore'ion of relay 31. Lockingerelay 40 functions principally as a means to enable the relay 31 to testfor the marginal condition established by switchlm. on its back strokeonly. In other words it functions as would a switching contact made by relay 31 in one direction only. Many forms of this are.

of the existence of the test condition sought by relay 31;

To recapitulate, if when the test condition is indicated by. relay 53, the interval of time of restoration permits relay 37 to fall back, the circuit 69 of the spacing device 803 is closed and relay 53 is deenergized, but'if before this, the relay 31 again pulls up, the circuit 65 of the dash ma et M is closed thru contacts of relay 53 and the relay 53 thereafterdeenergized by the opening of contacts 445 in the locking circuit. In sounding one has only to make the time in tervals between syllabic sub-groups of signals less than that taken by slow relay 37 to fall back, and that between main groups of signals ,slightly greater, and spacing and s llabilizing will take place automatically.

neof the relays Re may respond to the fundamental or carrying wave, or if that be not the case relay 31 is so adjusted that it .restores only on syllable intervals of deenertest con ition. When switch Tm is c gization of relays Re.

Now resuming at the point where the spacing device Sal becomes energized, it will be noted that relay 69 is deenergized only when the marginaltest condition of switch hn. is absent. Thus the spacing device Sal is actuated onl in the absence of the marginal osed 69' is energized over conductor 58 and by conductors 73 to NB. This shifts armature 74 from back contact to front contact 75 from which extends conductor 443 to the traverse device relay Tr. Hence when relay 37 falls back with the printing onthe margin, traverse'is immediately registered instead of a space. This causes operation of the traverse motor be later described to shift the carriage C to the beginning of the next line.

When relay 37 does not fall back, relay 31 on pulling up on the marginal condition as aforesaid records a dash. As in the case of traverse operation this record is printed in order immediately following the last letter of the preceding syllable. n record when the marginal condition is mesent (not at other times) the dash magnet M closes by front contacts 446 circuit from PB thru switch lm, conductor 58, conductors 73 and 79, relay and conductor 81 to NB. Relay 8O locks itself to battery PB by conductor 94 thru locking contacts 450 .and contacts 95 oflm, and partially closes by contacts 649 the circuit 443 of the traverse relay Tr thru conductor 448, and back contacts 447 of the dash magnet M. Thus when a dash marks a syllable on the margin traverse is effected upon the falling back of the dash magnet, and the carriage C is traversed immediately upon the printing of the dash, as it should be. to the-beginning of the next line.

Now the dash is a mark of punctuation, and as such is representative of its class. Although limited space prevents the showing, it is intended that the efiecting of the TM without delay as will record of any mark of punctuation marking the termination of a syllable, word, phrase, sentence, or the equivalent, or the printing of any numeral, and the like, shall cause the traverse of the carriage C to the beginn' ofa new line. To this end the circuits diid actuating devices of the other said punctuation and figure marks will be associated whenever found desirable, with the circuits of the traverse device in the manner described in connection with the dash register.

There are some cases in which this association will be unnecessary on account of the occurrence of a space interval immediate- 1y followin the signaling of the punctuation mark, the timing relay 37 then effecting traverse instead of space as previously set forth. Y r

Obviously, in the absence of the marginal test condition and durin the printing in the body of the lines, wh' tinuousl tests ,for the no sylla les'are marked as a result of such'a test, for relay 53 is deenergized until the mar inal condition is found. On the other han whenever timing relay 37 measures a space interval it closes by c0nduct0r69 independently of relay 53, the circuit of the space device Sd thru the back contact of the now deenergized relay 69 as traced above.

e therelay 31 conmarginal condition,

It has been said the bell relay 62 furnishes Z a guide to the operator as to marginal shift- 111 This relay upon being energized by re ay 53, closes one circuit, opens another,

' and locks itself up. The first circuit is that of the bell magnet 88 extending from PB thru front contact 89 by conductor 90 to the magnet and thence by conductor 91 to NB. The circuit opened is the loop, yof the common battery connection of relays. Tf (Fig. 2) and the opening is at backfcontact 92. The locking circuit is by front contact 93 to conductor 94 to normally close contacts 95 on the right hand limit switch Zm, and to NB. Thus relay 62 remains locked up until.

the carriage Cis shifted to the beginning of the new line whereupon it is unlocked.

It should be mentioned by the way that the line feed is accomplished by the traverse action as in the standard Oliver machine, or

else in any other well known way, electrical or mechanical. It may also be mentioned that the points of operation of the switches lm and Zm' may be adjusted at will thru adjustment suitably provided for any of the associated parts as may readily be done by the skilled engineer in accordance with the already. known marginal adjustments of standard typewriting machines.

Hearing the bell 96 rung by magnet 88 the operator signals the next syllable or the next word as if nothing had happened and then sto s. The letters of this next syllable or wor are not printed because common conductor 3 is open at contact 92. Signali the analyzer D2,

ing them, however, enables relay 3'? to measure the time interval and determine the syllabilizing and ensuing traverse. This latter being accomplished, when relay 62 falls back it closes by back contact 97, and conductor 98 the circuits of another bell 99 of the same or different tone from the bell 96, whereby the operator is advised to proceed which he does by beginning with the sub-group or group following the sounding of the first bell 96. The bells follow each other of course in quick succession.

The interrelation of the various instrumentalities will now be understood from the description of the interconnecting circuits.

The relays Re are energized directly from which in itself, as aforesaid, may be of any recently known or future known form. It suflices that each relay Re is controlled from and by that portion of the analyzer responding to the characteristic vibrations of the sound of the letter imprinted by that actuating magnet w ultimatel energized thru the particular relay Re. he circuits of all the relays Re are similar, extending from diaphragm Di, connected with battery PB thru the relays and thence to negative battery over common conductor 438, Figs. 2 and 1, andrelay 31 of set SM. Thus relay 31 is energized each time as is relay Re, and thru relay 37 constantly measures the syllable and word intervals, with resultant appropriate energizations of space magnet Sd, dash magnet DASH, and traverse motor Tm, as will hereinafter appear.

Each time a relay Re pulls up, it closes and holds closed during the persistence of the characteristic. vibration, the circuit PB, 426, 427, Tf, g, NB, of a transfer relay Tf, Tf locks itsel up over ordinary locking circuit 431, 433 to PR. 433 is a limit actuated locking contact on corresponding actuating magnet w, actuated only at or near the limit of movement of the plunges or cores 0.

Thus Tf remains energized until the energy gathered by the type bar is suflicient to insure proper imprint. But w is not actuated until relay Re falls back, when it closes circuit 426*, 429, 430, w from PB to NB by way of common conductor 439 (Figs. 2 and 1) including series relay 471 and normally closed contacts of the Figs. shift key (Fig. 2). Thus to throws type bar to the platen to imprint theletter or other signal char.- acter. Ata point suitably near the limit of its movement its core 0 strikes the limit contact 433 and opens the locking circuit of relay Tf, and in turn its own circuit at 429. Thus is the action made wholly positive with no chance of failure. Because Re closed circuit 430 b its back contact 426, there is no chance 0 ,doubling signal characters on sustained sounds which keep Re pulled up. Only when double letters or other characters bound subroup intervals will signal characters be oubled, as is proper. In such cases relays Re will pull up two separate times, once at the end of a preceding subgroup and once at the beginning of a succeeding sub-group.

This is the operation for each actuating magnet w, except that under certain conditions two or more rela s Re may be combined to control a sing e actuator w as in my parent application.

The spacing mechanism SM when space intervals occur between main group sounds, closes thru back contact of relay 69 the circuit 440 of s acing magnet Sd which upon operating brea s at a suitable point in its operation the locking circuit 441 of relay 40 at locking circuits 442, making relay 40 ready for a succeeding operation. When the end of the line is reached both relays 63 and 69* are energized thru the closure of lot over conductor 58 and the relay Tr of the traversing motor is submitted for Sal thru closure of front contact 70 of 69 The occurrence of a space interval effects closure of circuit 69, 60, 443, Tr, and traverse of the carriage ensues instead of space movement. Locking circuit of relay 40 is broken at the end of the traverse movement at contacts 444 on Zm. If, however, under these conditions a sub-group interval occurs instead of a main group interval, the circuit 65 of dash actuating magnet M is closed thru contacts of relay 53. Actuation of the dash magnet opens locking circuit of 40 at limit contacts 445, closes circuit of relay 80 at contacts 446, and upon deenergization closes at 447 the circuit 448, 443 by way of front contacts 449 of relay 80. Inasmuch as relay 80 has locked up by its contacts 450 and circuit 94 to limit contacts 95 of switch Zm, circuit 448, 443 is closed at 449 and relay Tr is energized as before, traversing the carriage after the dash registration, whereupon relay 80 is unlocked at contacts 95 along with relay 62. At the initiation of these movements bell 88 is sounded. At the completion bell 99 is sounded. In the period between the sounding of these bell signals no signaling is recorded by reason of the loop 3 in the circuit of relays Tf, but relays Re are, active and relay 31 in their battery connection 438 thru this activity measures the syllabic sub-group intervals at the margin as aforesaid.

T 0 record figure or equivalent combination signal characters the figures key FIGS is pressed. This breaks the connection of common conductor 438 with battery at contacts 451 and 452 respectively, and thereafter makes the connection of actuating magnets w of the figure characters and their associated locking contacts 445 at contacts 453 and 454 respectively. Thus letter character magnets w and the normal locking circuits of relays Tf are disabled, while figure character magnets w and abnormal locking circuits of relays Tf are enabled, for contacts 445 of the figure characters generally (see magnets w of PER and COM for example) complete locking circuits 435 to which relays Tf individuall lock in parallel by contacts 434. Thus if for example, the word period or some other combination of sound signals be made in Di, and if for example the first three letters are the key letters, relays T7 of characters P, E and R pull up in succession and upon the pulling up of the last,

that associated with the letter R, back.con-

tact 428 of that relay closes by conductors 455 and the series contacts 436 of relays Tf pulled up, the circuit 456 of the actuating magnet 10 of the period actuator PER. The circuit is broken at limit contacts 445 when core of this actuator approaches the limit of its movement, simultaneously unlocking the relays Tf of the group P, E, R. Obviously any otherletter or other signal groups or any single letter of the Word may be chosen as the combination or key to the figure character and the actuating and locking circuits combined similarly. The criterion is that the letter or other signal combinations chosen as the keys to figure characters shall differ from each other. A combination of four letter groups T, R, A and Y to control the cnergization of the traverse motor is also illustrated. Its circuits may be easily followed, being numbered similarly to those of the set P. E, R. It will be observed that the DASH has a winding w energized in a manner similar to the period, and also a winding M controlled independently by the spacing mechanism SM. This is in accord with the disclosures of my parent application wherein there are disclosed two windings on each actuating magnet.

Upon the record of a period, space and capital carriage. movements automatically take place. Upon actuation of magnet of PER contacts 456, 457 are closed. energizing relays 458 and 459 respectively. They lock up one over circuit 462 and contact 463 of magnet Sr], and the other circuit 464 and contacts 465 of make before break pair 465, 466 of cap shift magnet CS. Sd and C8 are simultaneously actuated with resulting space and capital shift movements whereupon relays 458 and 459 are unlocked. Sd promptly falls back but Cs remains locked up over circuit 467, closed by its locking contacts 466 before 463 are broken and including contacts 468 of make before break pair 468. 469 of relay 470. A relay 471 in series with common battery conductor 439 of the actuating magnets ac controls by its contacts 472 the actuating c'"cuit 473 of magnet 470. Magnet 47!) locks itself up by its contacts 474 and circuit 475 thru contacts 476 of caps magnet Cs. S1-

multaneously it transfers locking circuit 467 of caps magnet Cs by way of make contact 469 and conductor 477 to control of relay 471 at contact 478. Thus the moment before the first character is recorded and the corresponding current impulse in conductor 439 has died, Cs is unlocked at contacts 478 and the carriage drops to normal position for the second letter. Thus the first letter only of the word following the period has been capitalized and subsequent letters are ordinary type. Contact 476 of Cs in falling back unlocks relay 470 restoring it to normal status.

The actuation of the comma magnet COM will automatically effect actuation of the space magnet Sd by closing at 479 the circuit of relay 458 is parallel with contacts 456. Thus space also automatically follows comma.

Clearly, a system having these features will be of great utility in increasing the speed of operation of manual controlled machines, electrically operated machines, and printing telegraphs, and this class of machines generally. For instance, referring to the manually operated machines, it will be seen that the automatic spacing and capitalizing following period eliminates three movements on the part of the operator, and that of the automatic spacing following comma and other coordinate marks of punctuation, eliminates each time one movement. The various other automatic operations cut down the times correspondingly, and in cutting down the time also cut down the effort of the operator, lessening the fatigue.

It is believed that all other coordinate, similar or related operations will be fully understood from the circuits outlined, especially in conjunction with the full descriptionpf the enlarged system hereinbefore given. Obviously, primary and secondary registers may be interposed in these circuits as well as in those of the several forms of the invention disclosed in my parent application. Obviously, also, there may be provided all the manually operable su plemental control keys. Devices Lf and f may be controlled by hand or in the manner of the device Tm. The outstanding features (though far from only one) of this system is, however. the circuits between the primary vibrational controller and the actuator magnets 41: whereby the immediate register, if desired. may be omitted and positive and regular operation assured. It is only necessary to lave the typewriter mechanism light and fast enough in operation to insure record synchronously with the actuation of rela s Re and Tf.

The element 2' instead of being of the form invented by me may be of any of the forms now known or to be known to 15 in many ways.

35 cation.

45 Re are separated by so impulses may not the art. Thus either the Ferguson or Flowers types may be substituted, provided they are sufficiently efficient for practical use. Ferguson has used a diaphragm while Flowers has used tuned reeds and electrically tuned circuits. Others too have proposed tuned circuits or resonant circuits. There are still others.

The circuits herein disclosed may be ap- 10 plied to any form of typewriter known in and the other in connection with the machine using paper from the rolls.

It is apparent also that the figure shift key FIGS or its equivalent may be used for paragraph, traverse, and the like shifts which may then be signaled to the machine while the FIGS key is pressed. The FIGS key always means a word combination, but may not always mean a platen or type basket shift. The word signaled determines this thru the combination circuits 456 and it varies with variation of the key board. A special manually controlled CAPS key and other controlling circuits for magnets Cs may be provided as in my parent appli- All numerals on the universal keyboard are printed without a platen shift, but on some machines a platen shift accom anies such printing and is incident to it. owever it is believed that with the advent of commercial systems of this class the typewriting machine will be built especially for the work and not adapted to it.

The syllabic sub-groups of current impulses in common battery lead 438 of relays periods of time proportional to syllabic and space intervals. It is believed best that the relay 31 be adjusted a trifle slow in operation so that intervals less than syllabic intervals between current possibly result in the falling back prematurely. The natural characteristics of the relay may be found entirely sufficient for this purpose. If not it can be given the characteristics of a slow relay.

Obviously all control actions or interopcrations coordinate with those described may be carried out by means similar to those described. For instance all characters the 6% imprint of which is surrounded or imposed devices. It has therefore been unnecessary to illustrate all operations or all movements as applying to all the movements and operations which will appertain to the commercial machine.

It goes without saying that all modifications of my invention not falling without its generic spirit are comprehended in the annexed claims.

What is claimed is:

1. A system of vibratory signal control comprising a primary vibration receiving device, a translating device associated with said receiving device during both its vibratory encrgization and deenergizat-ion and in the one case itself energized and in the other case deenergized and by its state of energization differentiating between the conditions of energization and deenergization of the receiving device. and an electromagnetic actuating element of a signal recording machine the operation of which is controlled by said translating device.

2. A system of vibratory signal control comprising a primary sound vibration receIving device, a translating device associated with said receivin device during both its vibratory energization and denergization and in the one case itself energized and in the other case deenergized, and by its state of energization differentiating between the conditions of energization and deenergization of the receiving device, a timin element connected with said translating evice to measure the period of energization or deenergization thereof, character actuating element of a signal recording machine controlled by said translating device, and a second actuating element controlled by said timing device.

3. A system of vibratory signal control comprising a primary sound vibration receiving device set into vibration variously by the energy of the vibratory signals received and during periods energized and during other periods deenergized, an energy timing device controlled thereby to gauge the periods of energization and dcenergization thereof, and an electromagnetic actuating element ot a signal recording machine con trolled in turn by said timing device. 4. A system of vibratory sound signal control comprising a series of electrical circuits variously energized in response to the energy of (vibratory signals received), an electromagnetic slow relay controlled therethru and having a period of restoration greater than that normally existing between certain of said energizations of said circuits whereby its restoration indicates a length or period of deenergization of said circuits equal to or greater than its period of restoration, together with an electromagnetic actuating device of a signal recording machine operated by said slow relay upon its restoration.

A system of vibratory sound signal control comprising a series of electrical circuits variously energized for various periods through the energy of vibratory signals re ceived, a relay controlled from said circuits and energized whenever any one of said circuits is energized, a slow relay controlled by said first'named relay and having a period of restoration greater than that 'leenergization of said circuits caused by the time interval between syllabic signals received, together with an actuating device of a signal recording machine controlled by said slow relay.

6. A system of vibratory sound signal control comprising a series of electrical circuits variously energized for various periods through the energy of the vibratory signals received, a relay controlled from said circuits and energized whenever any one of said circuits is energized, a slow relay controlled by said first named relay and having a period of restoration greater than that between energizations upon successive syllabic signals of a determinate group and a translating device controlled by said slow relay.

7. A system of vibratory sound signal control comprising a plurality of electrical circuits energized through the energy of sound, a relay energized synchronously therewith and having a period of restoration greater than that existing between the energizations caused by the elements of individual vibratory signals, but less than the periods between successive vibratory signals of a determinate group, a locking relay initially energized thru energization of said first named relay and pre-establishing a circuit to be controlled, and control means for the pre-established circuit operative to close the circuit upon restoration of said first named relay.

8. A system of vibratory sound signal control comprising a series of electrical circuits variously energized through the energy of the vibratory signals received, a locking relay partially establishing the circuit of a controlling device, which locking relay is initially energized thru energization of said circuits, a slow relay having a period of restoration greater than the period normally existing between energies of said circuits effected by successive vibratory signals of a determinate group and itself energized also thru energization of said plurality of circuits, together with means operative upon restoration of said slow relay to control the partially established circuit of said controlling device.

9. A system of vibratory sound signal control comprising a plurality of electrical circuits variously energized through the vibratory signals received, a timing device connected with said circuits to gauge the intervals between sub-group and group signal energizations thereof, translating devices connected with said circuits to record the occurrences of said energizations thru circuit controlled actuations thereof, a record bearing element, and a controlling device therefor afl'ecting said record bearing element and the circuit of which is controlled by said timing device.

10. A system of vibratory sound signal control comprising a plurality of electrical circuits variously energized through the vibratory signals received, a timing device connected with said circuits to gauge the intervals between certain energizations thereof, translating devices connected with said circuits to record the occurrence of said energizations thru circuit controlled actuations, a record bearing element, a relay locked'up when the record bearing element reaches a predetermined position, and a record controlling device for the record bearing element, the circuit of which is controlled jointly by said timing device and said locking relay. I

11. A system of vibratory sound signal control comprising a plurality of electrical circui s variously energized through the vibratory signals received, a timing device connected with said circuits to gauge the intervals between certain energizations thereof, translating devices connected with said circuits to record the occurrence of said energizations thru circuit controlled actuations, a record bearing element, a controlling device therefor, the circuit of which is controlled jointly by said timing device and the position of said record bearing element, and a second controlling device for said record bearing element. the circuit of which is controlled by said timing device independently of the position of said record bearing element.

12. A system of vibratory sound signal control comprising an energy control ing device actuated variously through the vibratory signals received, a plurality of electr cal signal character circuits controlled from various parts each circuit including a slow relay having a period of restoration greater than its period of energization, and each in turn controlling a translating device upon its restoration only.

13. A system of vibratory sound signal control comprising a circuit controlling device actuated through the energy of the vibratory signals received, a plurality of signal character circuits differentially controlled thereby and each including a relay having a period of pullin up difi'erent from its period of falling bac and translating devices arranged to efi'ect a record controlled each by at least one of said relays, and some commonly by a plurality of sald relays.

Ill

14. A system of vibratory sound signal control, comprising a device actuated through the energy of the vibratory signals received, a plurality of electric signal character circuits differentially but commonly controlled thereby, a timing device in each of said circuits responsive to the energy therein to maintain an attitude of responses during period of deenergization of said circuits of determinate magnitude and to restore-to normal condition upon the occurrence of periods of deenerg zation greater than the determinate magnitude, a relay locked up on the action of initial response of any of said timing devices, and a controlling device having its circuit jointly controlled by said timing device upon restoration and said locking relay.

15. A system of vibratory sound signal control comprising a controlling device actuated through the energy of the vibratory signals received, a plurality of electrical signal character circuits differentially and commonly controlled thereby, a timing device in each of said circuits responsive to the energy therein to maintain an attitude of responses during period of deenergization of determinate magnitude and to restore to normal condition upon the occurrence of deenergization greater than the determinate magnitude, relays locked up on the occasions of initial response of said timing devices, controlling devices having their circuits jointly controlled by said timing devices upon restoration and said locking relays and additional controlling devices having their circuits controlled jointly by groups of said timing devices and locking relays.

16. An elemental sound vibration controlled circuit comprising an electromagnetic slow relay, a sound actuated element controlling the circuit thereof, and an electromagnetic character actuating device of a character recording machine having a circuit controlled by said slow relay.

17. An elemental sound vibration controlled circuit comprising a slow relay, a sound actuated element controlling the circuit thereof, and a translating device having a circuit partially closed on energization of said slow relay and completed upon deenergization thereof.

18. A sound vibration controlled circuit comprising a sound vibrated device, a timing device measuring the continuity of vibrations of said sound responsive device, and an individual character circuit of a character recording machine controlled by said timing device.

19. A sound vibration controlled system of circuits comprising a sound vibrated element, a timing device, a locking relay, and a translating device serially controlling each other, and the last, of which is controlled by the second thru the control of the third.

20. A sound vibration controlled system of circuits comprising a sound vibrated element, timing devices, locking relays, and translating devices, the circuit of one of the latterbeing predetermined by operation of a plurality of each of the timing devices.

21. A system of vibratory signal control comprising a sound vibratory device set into vibration by the energy of sound, a translating device associated with said vibratory device during both its energization and its deenergization and in the onecase itself energized and in other case deenergized and by its state of energization differentiating between conditions of energization and deenergization of the vibratory device, and a recording element controlled by said translating, device.

22. A system of vibratory signal control comprising a sound vibratory device set into vibration by the energy of sound, a translating device associated with said vibratory device during both its vibratory energization and deenergizations and in the one case itself energized and in the other case deenergized, and by its state of energization differentiating between the conditions of energization and deenergization of the vibratory device, a timing element connected with the translating device to measure the period of energization or deenergization thereof, a recording element for a character controlled by said translating device, and a spacing element controlled by saidtiming device.

23. A sound vibration controlled system of circuits comprising a sound vibrated ele-' ment, a timing device, a locking relay, and a translating device serially controlling each other, and the last of which is controlled by the second thru the control of the third, and the third of which is after initial control by the second, placed under control of the fourth of said devices.

In testimony whereof I hereunto aflix my signature.

JOHN P. TARBOX. 

